Serum: Hydrate and smooth your skin with a hyaluronic acid and collagen serum 60ml by Eclat Skin London. Hyaluronic acid: Aims to make skin softer and smoother for nourished and glowing results. Collagen: Aims to boost plumpness, deeply hydrate and make your skin look more awake. Directions for use: Apply one pump of the serum on cleansed face, neckline and neck in the evening. Wait until it is absorbed fully before applying night cream. Hydration boost: Aims to smoothen the look of dehydration lines for a youthful, plump and nourished-looking complexion. Formula: A pioneering 'anti-ageing' formula with hyaluronic acid, hydrolysed collagen and vitamin E. Hyaluronic Acid & Collagen Serum | Living Social